Opportunistic Spectrum Sharing in Cognitive Radio Networks

• Κύριοι συγγραφείς: Wang, Zhe (Συγγραφέας), Zhang, Wei (Συγγραφέας)
• Συγγραφή απο Οργανισμό/Αρχή: SpringerLink (Online service)
• Μορφή: Ηλεκτρονική πηγή Ηλ. βιβλίο
• Γλώσσα: English
• Έκδοση: Cham : Springer International Publishing : Imprint: Springer, 2015.
• Σειρά: SpringerBriefs in Electrical and Computer Engineering,
• Θέματα: Engineering.; Computer communication systems.; Electrical engineering.; Communications Engineering, Networks.; Computer Communication Networks.
• Φυσική περιγραφή: XI, 62 p. 25 illus. online resource.
• ISBN: 9783319155425
• ISSN: 2191-8112

This Springer Brief investigates spectrum sharing with limited channel feedback in various cognitive radio systems, such as point-to-point, broadcast scheduling and ad-hoc networks. The design aim is to optimally allocate the secondary resources to improve the throughput of secondary users while maintaining a certain quality of service for primary users. The analytical results of optimal resource allocation are derived via optimization theory and are verified by the numerical results. The results demonstrate the secondary performance is significantly improved by limited feedback and is further improved by more feedback bits, more secondary receivers and more primary side information.